He aha nā ʻāpana ʻehā o ka ʻoihana?Pehea ʻoe e ana ai ?

ʻO nā palena ʻoihana ʻehāmahana wela, kaomi, kahe kaheapae wai.

1. Ka wela

He waiwai kino ka wela e hōʻike ana i ke degere o ke anu a me ka wela o ka mea i ana ʻia.E like me ke ʻano ana o ka mea wela, hiki ke hoʻokaʻawale ʻia i ke ʻano pili a me ke ʻano pili ʻole.ʻO ka mīkini hoʻopili no ke ana ʻana i ka wela ka nui o ka thermometer, ka pale wela a me ka thermocouple.ʻO ka mea hoʻohana ʻana i ke ana wela ʻaʻole pili i ka pyrometer optical, photoelectric pyrometer, radiation pyrometer a me infrared thermometer.

2. Paʻi

ʻO ke kaomi i loaʻa ma luna o kekahi mea e pili ana i ke kaomi o ka lewa a me ke kaomi o ka mea i ana ʻia (ma ke ʻano maʻamau ʻo ka gauge pressure) ʻelua ʻāpana, ʻo ka huina o nā ʻāpana ʻelua o ke kaomi i ka mea i ana ʻia ua kapa ʻia ʻo ke kaomi piha, a ʻo ke kaomi ʻoihana maʻamau. ana ʻia ke ana e ka waiwai ana, ʻo ia hoʻi, P pākaukau =P ʻokoʻa – kaomi lewa.

Hiki ke hoʻokaʻawale ʻia nā mea ana kaomi i ʻekolu mau ʻāpana: e like me ka ʻumekaumaha a me ke ʻano o ke ana ʻana i ke kaomi ʻana, e ana pololei i ka nui o ka ikaika ma ka ʻāpana ʻāpana, e like me ke kaomi wai kolamu a me ka piston kaomi ana;E like me ke ʻano o ka ikaika elastic a me ke ana ʻana i ke koena puʻupuʻu, e ana i ka ikaika elastic i hana ʻia e ka deformation o ka elastic element ma hope o ka hoʻopili ʻana, e like me ke ana ʻana o ka pūnāwai, ke kaomi ʻana o ka bellows, ke ana a me ka pahu diaphragm;E hoʻohana i nā waiwai kino o kekahi mau mea e pili ana i ke kaomi, e like me ka volta a i ʻole ke kūpaʻa a i ʻole nā ​​loli capacitance ke kaomi ʻana;No ka laʻana, nā mea ʻike kaomi.

3. Kahe

I ka hana ʻenehana a me ka hoʻomalu ʻana, ʻo ka ʻike a me ka hoʻokele wai kahe ʻana kekahi o nā ʻāpana maʻamau.Nui nā ʻano mika i hoʻohana ʻia e ana i ke kahe, e like me ka ultrasonic flowmeter, electromagnetic flowmeter, throttling flowmeter a me volumetric flowmeter.

4. Papa

ʻO ka pae wai e pili ana i ke kiʻekiʻe o ka pae wai i loko o kahi pahu i hoʻopaʻa ʻia a i ʻole kahi pahu hāmama.ʻO nā mea hana maʻamau no ke ana ʻana i ka pae wai, ʻo ia ka mika pae kani ultrasonic, mika pae aniani, mika pae ʻokoʻa, mika pae pōleʻa lana, mika pae pahu, ʻo ka pōpō lana ʻana o ka ʻili o ka pā, ka mika pae radar, ka mika pae radioactive, ka pae hoʻokomo lekiō. mika, etc.